08 – PHP Basic File System

Being a serious PHP programmer it is necessary to learn about how to manipulate files, because it gives you a great deal of tools for creating, uploading, and editing files. In this tutorial, we’re going to focus on working with the file system and directories in PHP. To start in in this lesson, let’s create first a folder inside the local server name and name it as “file”.
Then inside this folder we’re going to create a simple html file and add the following code, then save it as “basichtml.hml”.

At this we will create a new PHP file called “basicfile.php”. And take note, one of the most important things about working with files and directory is the magic constant__FILE__ and read as “underscore, underscore capital FILE underscore underscore”. Then lets add the following code.

This tutorial will serve as a basic fundamental block of building a file system, because before we write a file we want to check if the file is really exists or not. Or after we have written the file we really want to check if the file does exist. Or we want to check if file exists before we to want read.

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